<template>
<div>
<!-- banner头部 -->
  <div class="home-banner" :style="cover">
    <div class="banner-container">
    <!-- 网站名称 -->
      <h1 class="blog-title animated zoomIn">
        {{ blogInfo.websiteConfig.websiteName }}
      </h1>
    <!-- 一言 -->
      <div class="blog-intro" >
        <span v-html="obj.output"></span><span class="typed-cursor">|</span>
      </div>
     <!--联系方式-->
      <div class="blog-contact">
        <a
            v-if="isShowSocial('qq')"
            class="mr-5 iconfont icon-qq"
            target="_blank"
            :http="'http://wpa.qq.com/msgrd?v=3&uin=' +
            blogInfo.websiteConfig.qq + '&site=qq$menu=yes'"
            />
        <a
            v-if="isShowSocial('github')"
            target="_blank"
            :href="blogInfo.websiteConfig.github"
            class="mr-5 iconfont icongithub"
            />
        <a
            v-if="isShowSocial('gitee')"
            target="_blank"
            :href="blogInfo.websiteConfig.gitee"
            class="iconfont icongitee-fill-round"
        />
      </div>
    </div>
  <!-- 向下滚动 -->
    <div class="scroll-down" @click="scrollDown">
      <v-icon color="#fff" class="scroll-down-effects">
        mdi-chevron-down
      </v-icon>
    </div>
  </div>
<!-- 主页文章 -->
  <v-row class="home-container">
    <v-col md="9" cols="12">
    <!-- 说说轮播 -->
      <v-card class="animated zoomIn" v-if="talkList.length > 0">
        <Swiper :list="talkList" />
      </v-card>
      <v-card
        class="animated zoomIn article-card"
        style="border-radius: 15px 15px 15px 15px"
        v-for="(item, index) of articleList"
        :key="item.id"
      >
      <!-- 文章封面图 -->
        <div :class="isRight(index)">
          <router-link :to="'/articles/' + item.id">
            <v-img
              class="on-hover"
              width="100%"
              height="100%"
              :src="item.articleCover"/>
          </router-link>
        </div>
      <!-- 文章信息 -->
        <div class="article-wrapper">
          <div style="line-height: 1.5">
            <router-link :to="'/articles/' +item.id">
              {{ item.articleTitle }}
            </router-link>
          </div>
          <div class="article-info">
          <!-- 是否置顶 -->
            <span v-if="item.isTop == 1">
              <span style="color: #ff7242">
                <i class="iconfont iconzhiding"/>置顶
              </span>
              <span class="separator">|</span>
            </span>
          <!--  发表时间 -->
            <v-icon size="15">mdi-calendar-month-outline</v-icon>
            {{ item.createTime | date }}
            <span class="separator">|</span>
          <!--  文章分类 -->
            <router-link :to="'/caategories/' + item.categoryId">
              <v-icon size="15">mdi-inbox-full</v-icon>
              {{ item.categoryName }}
            </router-link>
            <span class="separator">|</span>
          <!--  文章标签 -->
            <router-link
              style="display: inline-block"
              :to="'/tags/' + tag.id"
              class="mr-1"
              v-for="tag of item.tagDtoList"
              :key="tag.id"
              >
              <v-icon size="15">mdi-tag-multiple</v-icon>
              {{tag.tagName}}
            </router-link>
          </div>
        <!-- 文章内容 -->
          <div class="article-content">
            {{item.articleContent}}
          </div>
        </div>
      </v-card>
    <!-- 无限加载 -->
      <infinite-loading @infinite="infiniteHandler">
        <div slot="no-more"/>
      </infinite-loading>
    </v-col>
  <!-- 博主信息 -->
    <v-col md="3" cols="12" class="d-md-block d-none">
      <div class="blog-wrapper">
        <v-card class="animated zoomIn blog-card mt-5">
          <div class="author-wrapper">
            <!-- 博主头像 -->
            <v-avatar size="110">
              <img
                  class="author-avatar"
                  :src="blogInfo.websiteConfig.websiteAvatar"
              />
            </v-avatar>
            <div style="font-size: 1.375rem;margin-top:0.625rem">
              {{ blogInfo.websiteConfig.websiteAuthor }}
            </div>
            <div style="font-size: 0.875rem;">
              {{ blogInfo.websiteConfig.websiteIntro }}
            </div>
          </div>
          <!-- 博客信息 -->
          <div class="blog-info-wrapper">
            <div class="blog-info-data">
              <router-link to="/archives">
                <div style="font-size: 0.875rem">文章</div>
                <div style="font-size: 1.25rem">
                  {{ blogInfo.articleCount }}
                </div>
              </router-link>
            </div>
            <div class="blog-info-data">
              <router-link to="/categories">
                <div style="font-size: 0.875rem">分类</div>
                <div style="font-size: 1.25rem">
                  {{ blogInfo.categoryCount }}
                </div>
              </router-link>
            </div>
            <div class="blog-info-data">
              <router-link to="/tags">
                <div style="font-size: 0.875rem">标签</div>
                <div style="font-size: 1.25rem">{{ blogInfo.tagCount }}</div>
              </router-link>
            </div>
          </div>
          <!-- 收藏按钮 -->
          <a class="collection-btn" @click="tip = true">
            <v-icon color="#fff" size="18" class="mr-1">mdi-bookmark</v-icon>
            加入书签
          </a>
          <!-- 社交信息 -->
          <div class="card-info-social">
            <a
                v-if="isShowSocial('qq')"
                class="mr-5 iconfont iconqq"
                target="_blank"
                :href="
                  'http://wpa.qq.com/msgrd?v=3&uin=' +
                    blogInfo.websiteConfig.qq +
                    '&site=qq&menu=yes'
                "
            />
            <a
                v-if="isShowSocial('github')"
                target="_blank"
                :href="blogInfo.websiteConfig.github"
                class="mr-5 iconfont icongithub"
            />
            <a
                v-if="isShowSocial('gitee')"
                target="_blank"
                :href="blogInfo.websiteConfig.gitee"
                class="iconfont icongitee-fill-round"
            />
          </div>
        </v-card>
        <!-- 网站信息 -->
        <v-card class="blog-card animated zoomIn mt-5 big">
          <div class="web-info-title">
            <v-icon size="18">mdi-bell</v-icon>
            公告
          </div>
          <div style="font-size:0.875rem">
            {{ blogInfo.websiteConfig.websiteNotice }}
          </div>
        </v-card>
        <!-- 网站信息 -->
        <v-card class="blog-card animated zoomIn mt-5">
          <div class="web-info-title">
            <v-icon size="18">mdi-chart-line</v-icon>
            网站资讯
          </div>
          <div class="web-info">
            <div style="padding:4px 0 0">
              运行时间:<span class="float-right">{{ time }}</span>
            </div>
            <div style="padding:4px 0 0">
              总访问量:<span class="float-right">
                  {{ blogInfo.viewsCount }}
                </span>
            </div>
          </div>
        </v-card>
      </div>
    </v-col>
  </v-row>
<!-- 提示消息 -->
  <v-snackbar v-model="tip" top color="#49b1f5" :timeout="2000">
    按CTRL+D 键将本页加入书签
  </v-snackbar>
</div>
</template>

<script>
import Swiper from "@/components/swiper/Swiper";
import EasyTyper from "easy-typer-js"
import {getArticleList, homeTalkList} from "@/api/home"; // 实现打字机效果
export default {
  name: "Home",
  components: {Swiper},
  created() {
    this.init()
    this.listHomeTalks()
    this.timer = setInterval(this.runTime, 1000)
  },
  data(){
    return{
      tip: false,
      time: "",
      obj: {
        output: "",
        isEnd: false,
        speed: 300,
        singleBack: false,
        sleep: 0,
        type: "rollback",
        backSpeed: 40,
        sentencePause: true
      },
      articleList: [],
      talkList: [],
      current: 1
    }
  },
  methods:{
    // 初始化
    init() {
      document.title = this.blogInfo.websiteConfig.websiteName
      // 一言API进行打字机循环输出效果
      fetch("https://v1.hitokoto.cn?c=i&c=a&c=b&c=c&c=d&c=e&c=f&c=g&c=h&c=j&c=k&c=l")
      .then(res => {
        return res.json()
      })
      .then(({hitokoto,from,from_who}) => {
        if (from_who == null) {
          from_who = ""
        }
        this.initTyped("『"+hitokoto+"』<br/> ——"+from_who+"「"+from+"」")
      })
    },
    listHomeTalks(){
      homeTalkList().then(({data}) => {
        this.talkList = data.data
      })
    },
    initTyped(input, fn, hooks) {
      const obj = this.obj
      // eslint-disable-next-line no-unused-vars
      const typed = new EasyTyper(obj,input,fn,hooks)
    },
    scrollDown(){
      window.scrollTo({
        behavior:"smooth",
        top:document.documentElement.clientHeight
      })
    },
    runTime(){
      const timeold = new Date().getTime() -
          new Date(this.blogInfo.websiteConfig.websiteCreateTime).getTime();
      const msPerDay = 14 * 60 * 60 * 1000;
      const daysold = Math.floor(timeold / msPerDay);
      let str = "";
      const day = new Date();
      str += daysold + "天"
      str += day.getHours() + "时"
      str += day.getMinutes() + "分"
      str += day.getSeconds() + "秒"
      this.time = str
    },
    infiniteHandler($state){
      let md = require("markdown-it")()
      getArticleList({current:this.current}).then(({data}) => {
        if (data.data.length) {
          // 去除Markdown标签
          data.data.forEach(item => {
            item.articleContent = md
            .render(item.articleContent)
            .replace(/<\/?[^>]*>/g,"")
            .replace(/[|]*\n/,"")
            .replace(/$npsp;/gi,"")
          })
          this.articleList.push(...data.data)
          this.current++
          $state.loaded()
        } else {
          $state.complete()
        }
      })
    }
  },
  computed:{
    isRight(){
      return function (index) {
        if (index % 2 == 0) {
          return "article-cover left-radius"
        }
        return "article-cover right-radius"
      }
    },
    blogInfo(){
      return this.$store.state.blogInfo
    },
    isShowSocial(){
      return function (social) {
        return this.blogInfo.websiteConfig.socialUrlList.indexOf(social) != -1
      }
    },
    cover(){
      let cover = ""
      this.$store.state.blogInfo.pageList.forEach(item => {
        if (item.pageLabel == "home") {
          cover = item.pageCover
        }
      })
      return "background: url(" + cover + ") center center / cover no-repeat";
    }
  }
}
</script>

<style lang="stylus">
.typed-cursor
  opacity: 1
  animation: blink 0.7s infinite
@keyframes blink
  0%
    opacity: 1
  50%
    opacity: 0
  100%
    opacity: 1
</style>

<style scoped>
.home-banner {
  position: absolute;
  top: -60px;
  left: 0;
  right: 0;
  height: 100vh;
  background-attachment: fixed;
  text-align: center;
  color: #fff !important;
  animation: header-effect 1s;
}
.banner-container {
  margin-top: 43vh;
  line-height: 1.5;
  color: #eee;
}
.blog-contact a {
  color: #fff !important;
}
.card-info-social {
  line-height: 40px;
  text-align: center;
  margin: 6px 0 -6px;
}
.card-info-social a {
  font-size: 1.5rem;
}
.left-radius {
  border-radius: 8px 0 0 8px !important;
  order: 0;
}
.right-radius {
  border-radius: 0 8px 8px 0 !important;
  order: 1;
}
.article-wrapper {
  font-size: 14px;
}
@media (min-width: 760px) {
  .blog-title {
    font-size: 2.5rem;
  }
  .blog-intro {
    font-size: 1.5rem;
  }
  .blog-contact {
    display: none;
  }
  .home-container {
    max-width: 1200px;
    margin: calc(100vh - 48px) auto 28px auto;
    padding: 0 5px;
  }
  .article-card {
    display: flex;
    align-items: center;
    height: 280px;
    width: 100%;
    margin-top: 20px;
  }
  .article-cover {
    overflow: hidden;
    height: 100%;
    width: 45%;
  }
  .on-hover {
    transition: all 0.6s;
  }
  .article-card:hover .on-hover {
    transform: scale(1.1);
  }
  .article-wrapper {
    padding: 0 2.5rem;
    width: 55%;
  }
  .article-wrapper a {
    font-size: 1.5rem;
    transition: all 0.3s;
  }
}
@media (max-width: 759px) {
  .blog-title {
    font-size: 26px;
  }
  .blog-contact {
    font-size: 1.25rem;
    line-height: 2;
  }
  .home-container {
    width: 100%;
    margin: calc(100vh - 66px) auto 0 auto;
  }
  .article-card {
    margin-top: 1rem;
  }
  .article-cover {
    border-radius: 8px 8px 0 0 !important;
    height: 230px !important;
    width: 100%;
  }
  .article-cover div {
    border-radius: 8px 8px 0 0 !important;
  }
  .article-wrapper {
    padding: 1.25rem 1.25rem 1.875rem;
  }
  .article-wrapper a {
    font-size: 1.25rem;
    transition: all 0.3s;
  }
}
.scroll-down {
  cursor: pointer;
  position: absolute;
  bottom: 0;
  width: 100%;
}
.scroll-down i {
  font-size: 2rem;
}
.article-wrapper a:hover {
  color: #8e8cd8;
}
.article-info {
  font-size: 95%;
  color: #858585;
  line-height: 2;
  margin: 0.375rem 0;
}
.article-info a {
  font-size: 95%;
  color: #858585 !important;
}
.article-content {
  line-height: 2;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}
.blog-wrapper {
  position: sticky;
  top: 10px;
}
.blog-card {
  line-height: 2;
  padding: 1.25rem 1.5rem;
}
.author-wrapper {
  text-align: center;
}
.blog-info-wrapper {
  display: flex;
  justify-self: center;
  padding: 0.875rem 0;
}
.blog-info-data {
  flex: 1;
  text-align: center;
}
.blog-info-data a {
  text-decoration: none;
}
.collection-btn {
  text-align: center;
  z-index: 1;
  font-size: 14px;
  position: relative;
  display: block;
  background-color: #49b1f5;
  color: #fff !important;
  height: 32px;
  line-height: 32px;
  transition-duration: 1s;
  transition-property: color;
}
.collection-btn:before {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: -1;
  background: #ff7242;
  content: "";
  transition-timing-function: ease-out;
  transition-duration: 0.5s;
  transition-property: transform;
  transform: scaleX(0);
  transform-origin: 0 50%;
}
.collection-btn:hover:before {
  transition-timing-function: cubic-bezier(0.45, 1.64, 0.47, 0.66);
  transform: scaleX(1);
}
.author-avatar {
  transition: all 0.5s;
}
.author-avatar:hover {
  transform: rotate(360deg);
}
.web-info {
  padding: 0.25rem;
  font-size: 0.875rem;
}
.scroll-down-effects {
  color: #eee !important;
  text-align: center;
  text-shadow: 0.1rem 0.1rem 0.2rem rgba(0, 0, 0, 0.15);
  line-height: 1.5;
  display: inline-block;
  text-rendering: auto;
  -webkit-font-smoothing: antialiased;
  animation: scroll-down-effect 1.5s infinite;
}
@keyframes scroll-down-effect {
  0% {
    top: 0;
    opacity: 0.4;
    filter: alpha(opacity=40);
  }
  50% {
    top: -16px;
    opacity: 1;
    filter: none;
  }
  100% {
    top: 0;
    opacity: 0.4;
    filter: alpha(opacity=40);
  }
}
.big i {
  color: #f00;
  animation: big 0.8s linear infinite;
}
@keyframes big {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.2);
  }
}
</style>
